Zed version 0.145.1 is still hitting this issue. Through as mentioned above, it is still possible to scroll up/down the list with the mouse wheel/touch pad gesture.

But other widgets/GUI controls are handling scrollbar very well. I wonder how the mechanism was implemented (I'm not good at reading Rust code). Based on #4798, I guess it's a case by case thing?

(Side note: you can also scroll the terminal mentioned in #4798 with mouse wheel etc)

Maybe consider making scrollbar as a part of a standard container component, like how the web browser implemented it (i.e. if the content of inner widget exceeded the size of it's parent container, the container may display a scrollbar based on it's style settings).